Explain the concepts of Contango and Backwardation in commodity futures markets. What are the core drivers behind the formation of these two market structures? Furthermore, as a trader, how would you utilize this market structure information to formulate potential trading strategies or make risk management decisions?

请解释商品期货市场中'Contango'和'Backwardation'这两个概念。深入探讨导致这两种市场结构形成的核心驱动因素，并详细说明作为一名交易员，你将如何利用这些市场结构信息来制定潜在的交易策略或进行风险管理决策。